diff --git a/impy/__init__.py b/impy/__init__.py
index 280422e..5c8930f 100644
--- a/impy/__init__.py
+++ b/impy/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.4.4"
+__version__ = "2.4.5"
 __author__ = "Hanjin Liu"
 __email__ = "liuhanjin-sc@g.ecc.u-tokyo.ac.jp"